%0 Journal Article %A E. A. Smirnov %T Colour phenomena in diacyl derivatives of $p$-aminophenol %J Doklady Akademii Nauk %D 1958 %P 544-547 %V 120 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_120_3_a24/ %G ru %F DAN_1958_120_3_a24